HSC Type Chain Pulley Block Grade A Chain 20Mn2 Capacity: 0.5~20ton ... chain:6mm,8mm,10mm HSC Type Chain Pulley Block Grade A Chain 20Mn2 Capacity: 0.5~20tonDia of ... chains for ship,fishing chain,three-link chain for coal transfer,transport chain……Material:carbon steel,alloy steel,high ... galvanized,electro galvanized,PVC coated or as you required.Grade:G30,G43,G70,G80,C100Manufacture Standard:ISO,DIN,BS ...